Ua wānana nā kānaka noiʻi i kahi pūnaewele kalapona hou, e like me ka graphene, akā me kahi microstructure paʻakikī, kahi e alakaʻi ai i nā pila kaʻa uila ʻoi aku ka maikaʻi. ʻO Graphene paha ke ʻano kaulana loa o ke kalapona. Ua hoʻohana ʻia ʻo ia ma ke ʻano he lula pāʻani hou no ka ʻenehana pila lithium-ion, akā hiki i nā ʻano hana hou ke hana i nā pila ikaika hou aʻe.
Hiki ke ʻike ʻia ʻo Graphene ma ke ʻano he pūnaewele o nā ʻātoma kalapona, kahi e pili ai kēlā me kēia ʻātoma kalapona i ʻekolu mau ʻātoma kalapona e pili ana e hana i nā hexagons liʻiliʻi. Eia nō naʻe, kuhi nā mea noiʻi he mea ʻē aʻe kēia ʻano honeycomb pololei, hiki ke hana ʻia nā ʻano ʻē aʻe.
ʻO kēia ka mea hou i hoʻomohala ʻia e kahi hui mai ke Kulanui o Marburg ma Kelemania a me ke Kulanui ʻo Aalto ma Finland. Ua hoʻohuli lākou i nā ʻātoma kalapona i nā kuhikuhi hou. ʻO ka mea i kapa ʻia ʻo ka pūnaewele biphenyl ua haku ʻia me nā hexagons, squares a me octagons, he grid paʻakikī ia ma mua o ka graphene. Wahi a nā kānaka noiʻi, no laila, he ʻokoʻa loa kona, a ma kekahi mau ʻano, ʻoi aku ka makemake ʻia o nā waiwai uila.
Eia kekahi laʻana, ʻoiai ua mahalo ʻia ka graphene no kona hiki ke lilo i semiconductor, ʻoi aku ka hana o ka pūnaewele kalapona hou e like me ka metala. ʻO ka ʻoiaʻiʻo, i ka wā he 21 wale nō ka laulā o nā ʻātoma, hiki ke hoʻohana ʻia nā kaha o ka pūnaewele biphenyl ma ke ʻano he mau kaula conductive no nā mea uila. Ua kuhikuhi lākou ma kēia unahi, hana mau ka graphene e like me ka semiconductor.
Ua ʻōlelo ka mea kākau nui: "Hiki ke hoʻohana ʻia kēia ʻano pūnaewele kalapona hou ma ke ʻano he mea anode maikaʻi loa no nā pila lithium-ion. Ke hoʻohālikelike ʻia me nā mea i hoʻokumu ʻia i ka graphene o kēia manawa, ʻoi aku ka nui o ka hiki ke mālama i ka lithium."
ʻO ka anode o kahi pākahi lithium-ion i hana pinepine ʻia me ka graphite i hohola ʻia ma luna o ka pepa keleawe. Loaʻa iā ia ka conductivity uila kiʻekiʻe, ʻaʻole wale ia he mea nui no ke kau ʻana i nā ion lithium ma waena o kona mau papa, akā no ka mea hiki iā ia ke hoʻomau i ka hana pēlā no nā tausani o nā pōʻaiapuni. ʻO kēia ka mea e lilo ai ia i pākahi pono loa, akā he pākahi hoʻi e hiki ke lōʻihi no ka manawa lōʻihi me ka ʻole o ka hōʻino ʻia.
Eia nō naʻe, ʻo nā koho ʻē aʻe i ʻoi aku ka maikaʻi a me ka liʻiliʻi e pili ana i kēia pūnaewele kalapona hou e hiki ke hoʻonui i ka mālama ʻana i ka ikehu pila. Hiki i kēia ke hoʻolilo i nā kaʻa uila a me nā mea hana ʻē aʻe e hoʻohana ana i nā pila lithium-ion i liʻiliʻi a māmā.
Eia nō naʻe, e like me ka graphene, ʻo ka noʻonoʻo ʻana pehea e hana ai i kēia mana hou ma kahi pae nui ka pilikia aʻe. ʻO ke ʻano o ka hōʻuluʻulu ʻana o kēia manawa e hilinaʻi nei i kahi ʻili gula laumania loa kahi e hoʻokumu mua ai nā molekala kalapona i nā kaulahao hexagonal i hoʻopili ʻia. Hoʻopili nā hopena ma hope i kēia mau kaulahao e hana i nā ʻano huinahā a me nā ʻano octagonal, e ʻokoʻa ai ka hopena hope loa mai ka graphene.
Ua wehewehe nā mea noiʻi: "ʻO ka manaʻo hou, ʻo ia ka hoʻohana ʻana i nā precursors molecular i hoʻoponopono ʻia e hana i ka biphenyl ma kahi o graphene. ʻO ka pahuhopu i kēia manawa, ʻo ia ka hana ʻana i nā pepa nui o nā mea i hiki ke hoʻomaopopo maikaʻi ʻia kona mau waiwai."
Ka manawa hoʻouna: Ian-06-2022
